Behavioural Insights Projects
Discover projects applying behavioural science to policy from around the world. Add your own projects, whether completed or still ongoing, to contribute knowledge on BI applications across different countries, policy areas, and topics of interest.

Number of BI projects:
0
Legend: Projects status
- Pre-registered project
- Completed project
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Using sustainable transportation alternatives can often be hindered by car dependence (Haustein, 2021). Within the context of Santa Monica, for example, approximately 75% of Santa Monica residents choose single occupancy vehicle (SOV) commutes to work, and over 50% of households own more than one vehicle (Data USA, n.d.). More generally, vehicle transportation accounts for 62% of greenhouse gas emissions in the city, making it the largest emissions contributor (Johnstone, 2021).
However,…
BI Project
Helping social assistance recipients in finding work: Does a different approach lead to more people…
In a series of field experiments, six municipalities investigated whether a different approach in social assistance could get more people into work. The study focused on the effects of an exemption from the obligation to seek work, more intensive counselling or higher earnings disregards for additional income. A different approach can increase the number of people finding jobs. More research is needed.
Why the experiments were conducted: increasing the effectiveness of the Participation…
It’s the end of April in Poland. While everyone
is happy the harsh winter weather is finally getting
milder, the Polish Tax Authority is worried because
62% of the country failed to pay their taxes on time.
Over the past decade, the use of behavioral principles
by tax administrations in different countries has been
gaining ground. Given the country’s tax compliance
rate, Polish authorities and the World Bank tested the
use of behaviorally informed letters to late taxpayers
in order to…
Pacific Island Nations are facing a crisis of Non-Communicable Diseases (NCDs) - chronic diseases which are the result of a combination of genetic, physiological, environmental and behavioural facts. NCDs are the leading cause of mortality in the region, accounting for 75% of deaths. Unhealthy diets in particular have been recognized as a risk factor for high rates of obesity. Residents of the Pacific Island Nations have some of the highest rates of obesity in the world, with 92.9% and 80.7% of…
Not all UWV clients who receive unemployment benefit post their CVs on werk.nl. This prevents them from being found or matched for a job. Would it help to send them a reminder to their personal Work Folder as well as a text message? Yes it would: this experiment shows that five times more clients are then prompted to put their CV online, compared to clients who are not sent a reminder.
Why this experiment was conducted: missing CVs
25% of jobseekers on unemployment benefit who are asked to post…
The Program of Applied Research on Climate Action in Canada (PARCA Canada) combines behavioural science (BeSci) insights and methods with robust policy analysis to promote climate action. One of the main areas of focus involves the launch of a longitudinal survey that will, over time, collect data on research questions of interest to the promotion of climate action in Canada (e.g. transportation, home energy use, waste management, engagement with nature, preparedness for extreme weather,…
BI Project
Less waste placed next to underground containers: is there a reduction in the amount of waste left…
The Municipality of Dordrecht organised a competition titled The Cleanest Neighbourhood in Dordrecht. The aim was to get residents to place less rubbish next to underground waste containers. As a result of the experiment, the amount of waste left next to bins decreased and a new social norm was established.
Why this experiment was conducted: rubbish left next to waste containers
Bin liners and other bags containing residual and larger waste left next to underground containers rank amongst the…
Among the education and psychology literature
that looks at the role of beliefs and school outcomes,
Growth Mindset theory (GM) posits that by helping
students shift their theory of learning to one where
intelligence isn’t a fixed state – but rather, that it’s
malleable, and something you can improve and grow
over time – students can become self-motivated to
improve both academic effort and outcomes. Teaching
youth how to foster a GM doesn’t just offer a potential
solution at low cost…
PROJECT SUMMARY
Students were sent two redesigned emails during the course selection process: a pre-registration email that laid out instructions and procedures for registration, and a post-registration email that notified students if any of their upcoming courses did not fit financial aid requirements.
IMPACT
The average aid award for students receiving both redesigned emails rose by $150.28 per student for the Spring semester compared with students who received neither email, with a total…
BI Project
Filing tax returns correctly and on time: Is there value in expressing thanks to citizens and…
Are people more likely to file their tax returns correctly if they receive a thank-you in advance or afterwards? Analyses show that thank-you messages have no effect on compliance behaviour.
Why this experiment was conducted: positive alternative sought
To encourage citizens' tax compliance (i.e., paying their taxes on time and correctly), it is occasional practice to emphasise the risk of checks and fines in case of non-compliance. One drawback of this deterrent method is that it can damage…